//
//  UIViewController+PreviousViewController.h
//  nbappdev
//
//  Created by Jingjing Huang on 29/01/17.
//  Copyright © 2017 boleguigu_dev1. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface UIViewController (PreviousViewController)

- (UIViewController *)previousViewController;
-(UIViewController *)getViewController:(Class)class;

@end
